METHOD, DEVICE, AND SYSTEM FOR DISK REDIRECTION

Abstract

 A method, device, and system for disk redirection. The method comprises: receiving an operation request with respect to a file in a drive letter, generating a corresponding operation instruction and operation content on the basis of the operation request (S201), transmitting the operation instruction and the operation content to a cloud terminal to allow a file in a disk on the cloud terminal and corresponding to the operation request to execute the operation instruction and the operation content (S202), receiving an executed file operation result and, in response to the file operation result, the file in the drive letter implementing a synchronization operation with the file in the corresponding disk (S203). By such means, the network adaptability of disk redirection is increased.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present disclosure claims priority to Chinese patent application No. CN 201811519561.7, filed Dec. 12, 2018, entitled "METHOD, DEVICE, AND SYSTEM FOR DISK REDIRECTION", the entire content of which is incorporated herein by reference.

TECHNICAL FIELD

[0002] The present disclosure relates to the field of computer technology, in particular to, a method, apparatus, and system for disk redirection.

BACKGROUND

[0003] Cloud computing is listed by China as a strategic emerging industry to be supported. As one of the earliest projects in the cloud computing industry, the cloud desktop technology has a huge market scale. In recent years, the cloud desktop technology has flourished in China. Many schools, governments and enterprises have adopted cloud desktop products instead of traditional PC. Cloud desktop technology raises a revolution in enterprise IT architectures that delivers a mobile computing experience while meeting the needs of many specific industries.

[0004] In the cloud desktop technology, for an aspect of disk redirection, especially mass storage device redirection, there are a lot of problems to be solved. At present, most of the schemes with respect to disk redirection rely on network file sharing based on a SMB protocol. The network file sharing described above requires network penetration to achieve mutual access between files.

SUMMARY

[0005] To solve the above technical problems, the present disclosure provides a method for disk redirection, device, system, computer apparatus and storage medium.

[0006] A method for disk redirection is provided, which includes: receiving an operation request for a file in a drive letter, and generating a corresponding operation instruction and operation content according to the operation request; sending the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request; and receiving a file operation result after execution and responding to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0007] A device for disk redirection is provided, which includes: a first generation module configured to receive an operation request for a file in a drive letter and generate a corresponding operation instruction and operation content according to the operation request; a first sending module configured to send the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request; and a response module configured to receive a file operation result after execution and respond to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0008] A computer apparatus is provided, which includes a memory, a processor and a computer program stored in the memory and executable by the processor. When the processor executes the computer program, the following steps are implemented: receiving an operation request for a file in a drive letter, and generating a corresponding operation instruction and operation content according to the operation request; sending the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request; and receiving a file operation result after execution and responding to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0009] A computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented: receiving an operation request for a file in a drive letter, and generating a corresponding operation instruction and operation content according to the operation request; sending the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request; and receiving a file operation result after execution and responding to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0010] A method for disk redirection is provided, which includes: receiving an operation instruction and operation content sent by a cloud desktop, where the operation instruction and operation content are generated according to an operation request for a file in a drive letter of the cloud desktop; executing the operation instruction and the operation content on a file in a disk corresponding to the operation request; and sending a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0011] A device for disk redirection is provided, which includes: an instruction reception module configured to receive an operation instruction and operation content sent by a cloud desktop, where the operation instruction and the operation content are generated according to an operation request for a file in a drive letter of the cloud desktop; an execution module configured to execute the operation instruction and the operation content on a file in a disk corresponding to the operation request; and a sending module configured to send a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0012] A computer apparatus is provided, which includes a memory, a processor and a computer program stored in the memory and executable by the processor. When the processor executes the computer program, the following steps are implemented: receiving an operation instruction and operation content sent by a cloud desktop, where the operation instruction and operation content are generated according to an operation request for a file in a drive letter of the cloud desktop; executing the operation instruction and the operation content on a file in a disk corresponding to the operation request; and sending a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0013] A computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented: receiving an operation instruction and operation content sent by a cloud desktop, where the operation instruction and operation content are generated according to an operation request for a file in a drive letter of the cloud desktop; executing the operation instruction and the operation content on a file in a disk corresponding to the operation request; and sending a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0014] A system for disk redirection is provided, which includes a cloud terminal and a cloud desktop, where, the cloud desktop is configured to receive an operation request for a file in a drive letter, generate a corresponding operation instruction and operation content according to the operation request, and send the operation instruction and operation content to the cloud terminal; the cloud terminal is configured to execute the operation instruction and the operation content on a file in a disk corresponding to the operation request; and the cloud desktop is configured to receive a file operation result after execution and respond to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of the description, illustrate embodiments consistent with the present disclosure and together with the description serve to explain the principles of the present disclosure.

[0016] In order to illustrate the technical schemes in the embodiments of the present disclosure or in some situations, the following briefly describes the accompanying drawings required for use in the embodiments or some situations, and it will be apparent to those having ordinary skills in the art that other drawings may be obtained from these drawings without creative effort.

Fig. 1 is an application scenario schematic diagram showing a method for disk redirection in an embodiment;

Fig. 2 is a flowchart showing a method for disk redirection in an embodiment;

Fig. 3 is a diagram showing an application scenario of a method for disk redirection in another embodiment;

Fig. 4 is a flowchart showing a method for disk redirection in another embodiment;

Fig. 5 is a flowchart showing steps of generating operation content in an embodiment;

Fig. 6 is a flowchart showing steps of sending and receiving data by a preset channel in an embodiment;

Fig. 7 is a flowchart showing steps of file encryption and decryption in an embodiment;

Fig. 8 is a flowchart showing a method for disk redirection in another embodiment;

Fig. 9 is a flowchart showing steps of creating a drive letter in an embodiment;

Fig. 10 is a flowchart showing steps of sending and receiving data through a preset channel in another embodiment;

Fig. 11 is a sequence diagram showing a process of accessing a disk in an embodiment;

Fig. 12 is a sequence diagram showing a process of a file system operation in an embodiment;

Fig. 13 is a flowchart showing a copy-and-paste operation, and a cut-and-paste operation, in an embodiment;

Fig. 14 is a structural block diagram showing an apparatus for disk redirection in an embodiment;

Fig. 15 is a structural block diagram showing a drive letter creation module in an embodiment;

Fig. 16 is a structural block diagram showing an apparatus for disk redirection in another embodiment;

Fig. 17 is a structural block diagram showing an encryption and decryption module in an embodiment;

Fig. 18 is a structural block diagram showing an apparatus for disk redirection in yet another embodiment;

Fig. 19 is a structural block diagram showing an apparatus for disk redirection in yet another embodiment; and

Fig. 20 is a structural block diagram showing an internal structure of a computer apparatus in an embodiment.

DETAILED DESCRIPTION

[0017] In order to make the objectives, technical schemes and advantages of the embodiments of the present disclosure clear, the technical schemes in the embodiments of the present disclosure will be described below with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are part of the embodiments of the present disclosure, not all of them. Based on the embodiments of the present disclosure, all other embodiments obtained by those having ordinary skills in the art without creative effort fall within the scope of the present disclosure.

[0018] Fig. 1 is a schematic diagram showing an application environment of a method for disk redirection in an embodiment. Referring to Fig. 1, the method for disk redirection is applied to a disk redirection system. The system for disk redirection includes a cloud desktop 110 and a cloud terminal 120. The cloud desktop 110 and the cloud terminal 120 are connected through a network. The cloud desktop 110 receives an operation request for a file in a drive letter, generates a corresponding operation instruction and operation content according to the operation request, and sends the operation instruction and operation content to the cloud terminal 120. The cloud terminal 120 executes the operation instruction and the operation content on a file in a disk corresponding to the operation request. The cloud desktop 110 receives a file operation result after execution and responds to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk. The cloud desktop mainly distributes cloud resources to respective operating terminals through a virtualized application, and still belongs to the data platform cloud operating system. The cloud terminal 120 can be implemented by an independent terminal or a terminal cluster composed of a plurality of terminals.

[0019] As shown in Fig. 2, according to an embodiment, a method for disk redirection is provided. In this embodiment, the method is mainly applied to the cloud desktop 110 in Fig. 1. Referring to Fig. 2, the method for disk redirection includes the following steps.

[0020] Step S201: receiving an operation request for a file in a drive letter, and generating a corresponding operation instruction and operation content according to the operation request.

[0021] In an embodiment, disk redirection refers to redirecting various requests for files in the disk to other locations for execution. A drive letter refers to an entry created on the cloud desktop for accessing a disk. A file refers to a file stored in the disk, where the file in the disk is stored corresponding to the file in the drive letter. The disk refers to a disk in the cloud terminal. An operation request refers to the user's operation request realized by shortcut key, click and touch, such as creating, opening, reading/writing, renaming and deleting a file in the drive letter; creating, opening, enumerating, renaming and deleting a directory; acquiring and displaying a volume label; acquiring and displaying size and occupancy of a disk space, etc. An operation instruction refers to a computer-executable instruction for creating, opening, reading/writing, renaming and deleting the file; creating, opening, enumerating, renaming and deleting the directory, etc. Operation content refers to one or more files targeted by the operation instruction, where the content of a file may additionally or alternatively include: text information, picture information, audio information, etc.

[0022] Step S202: sending the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request.

[0023] In an embodiment, the cloud desktop sends the operation instruction and operation content to the cloud terminal through the network, and the cloud terminal executes the operation instruction and operation content on the file in the disk corresponding to the operation request after receiving the operation instruction and operation content. If the operation instruction is a file creation instruction, the corresponding file is created in the corresponding disk. If the operation instruction is a directory opening instruction, the file directory is opened on the corresponding disk.

[0024] Step S203: receiving a file operation result after execution and responding to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0025] In an embodiment, the file operation result refers to the file status in which the file has changed after the operation instruction and operation content are executed on the file. Responding to the file operation result means that the cloud desktop realizes file synchronization with the cloud terminal. If the operation instruction is a file opening operation instruction, the operation result of the file is to open the file, obtain the file directory list after opening the file, and send the successfully opened and obtained file directory list to the cloud desktop. After receiving the successfully opened and obtained file directory, the cloud desktop responds to file opening in the cloud desktop.

[0026] In an embodiment, step S203 further includes displaying the result of the synchronization operation.

[0027] In an embodiment, the result of the synchronous operation refers to the desired purpose of the operation request. For example, if the operation request is to open a file A, the result of the corresponding synchronization operation is to open the file A. After opening the file A, the file directory after opening the file A is displayed.

[0028] In an embodiment, as shown in Fig. 3, the cloud desktop 110 includes a cloud desktop system 112, a file system driver 114 and a cloud desktop communication processing service program 116. The cloud terminal 120 includes a cloud terminal system 122, a file system 124 and a cloud terminal communication processing service program 126. The cloud desktop system 110 can be a Windows system or a Linux system.

[0029] When a user operates a file in the cloud desktop system, the file system driver receives an operation request from the cloud desktop system for a file system device (such as creating, opening, reading/writing, renaming and deleting a file; creating, opening, enumerating, renaming and deleting a directory; acquiring and displaying a volume label; acquiring and displaying size and occupancy of a disk space, etc.). The file system driver forwards the operation request for the file system device to the cloud desktop communication processing service program in the form of operation instruction plus operation content. The cloud desktop communication processing service program sends the operation instruction and operation content to the client communication processing service program. The client communication processing service program submits the received operation instruction and the operation content to the file system for processing. The file system executes the corresponding operation instruction and operation content in the corresponding disk, obtains the file operation result after execution, and returns the file operation result to the client communication processing service program. The client communication processing service program returns the file operation result to the cloud desktop communication processing service program. The cloud desktop communication processing service program receives the returned file operation result and responds to the file system driver to complete the operation request of the cloud desktop system to the file system device.

[0030] According to the above method for disk redirection, by receiving an operation request for a file in a drive letter, generating a corresponding operation instruction and operation content according to the operation request, sending the operation instruction and operation content to the cloud terminal so as to execute the operation instruction and operation content on the file in the disk of the cloud terminal corresponding to the operation request, receiving a file operation result after execution, and responding to the file operation result, a synchronous operation between the file in the drive letter and the file in the corresponding disk is realized. Therefore, the cloud desktop generates the corresponding operation instruction and operation content according to the operation request, sends the generated operation instruction and operation content to the cloud terminal for execution in the cloud, receives the executed file processing result, and enables the cloud desktop to realize the operation request according to the file processing result, thus improving the network adaptability of disk redirection and reducing the network maintenance cost.

[0031] In an embodiment, as shown in Fig. 4, before step S201, the method further includes step S301: receiving an access notification of the disk, drive letter information and corresponding login user information sent by the cloud terminal; step S302: creating a corresponding disk device and a corresponding file system device according to the access notification, where the file system device is configured to store the file; step S303: acquiring a corresponding session according to the login user information; and creating, in the session, the corresponding drive letter according to the drive letter information.

[0032] In an embodiment, the disk access notification refers to the notification of a disk accessible by the cloud terminal, and the drive letter information refers to information for describing the drive letter, including identification information of the drive letter, etc. Login user information refers to the information of a user logging into the cloud desktop and cloud terminal, and the user message includes but is not limited to the information such as user authority and user identification. The cloud desktop receives the disk access notification, drive letter information and corresponding login user information sent by the cloud terminal through the network. After receiving the disk access notification, the cloud desktop creates a disk device and a file system device corresponding to the access notification, where the disk device is a device for storing a drive letter and the file system device is a device for storing a file. The cloud desktop acquires a corresponding session according to the login user information, where the session refers to a system session. For example, if a system contains multiple users, each user will enter the user's system session after logging in to the user account. For the convenience of understanding, the following is an example of PC containing two different users. Suppose there are two users, user A and user B. User A enters the session of user A after logging in to the system, and user B enters the session of user B after logging in to the system. The cloud desktop creates a drive letter in the user's session according to the user's drive letter information. Different users create drive letters in their own sessions, which avoids confusion of drive letters and improves information security.

[0033] In an embodiment, as shown in Fig. 5, the above method for disk redirection further includes step S401: judging whether the operation request is a preset operation request.

[0034] In this embodiment, generating corresponding operation content according to the operation request includes step S402: when the operation request is a preset operation request, generating a corresponding local execution instruction according to the preset operation request, and executing the local execution instruction to obtain the operation content.

[0035] In an embodiment, the preset operation request includes a copy-and-paste operation request and a cut-and-paste operation request. The cloud desktop is provided with an operation instruction detection program. When the detection program detects that the operation instruction is a preset operation request, it means that the instruction detected by the operation instruction detection program is a copy-and-paste operation request or a cut-and-paste operation request. The detection program can use system commands to monitor these operation requests, such as using "HOOK" to monitor an operation request of copy-and-paste or cut-and-paste. The local execution instruction refers to the instruction executed on the cloud desktop, and the operation content is the operation content obtained after the local instruction is executed.

[0036] In an embodiment, a preset operation channel is preset between the cloud terminal and the cloud desktop. as shown in Fig. 6, sending the operation instruction and operation content to the cloud terminal includes step S2031: sending the operation instruction and operation content through a preset operation channel.

[0037] In this embodiment, receiving the file operation result after execution includes step S2041: receiving the file operation result through the preset operation channel.

[0038] In an embodiment, the operation instruction and the operation content are sent to the cloud terminal through a preset channel, the operation instruction and the operation content are executed at the cloud terminal to obtain a corresponding file operation result, and the file operation result is sent to the cloud desktop through the preset channel.

[0039] The preset channel is a fast channel between the cloud terminal and the cloud desktop, through which copy-and-paste and cut-and-paste operations are transmitted and returned. Copy-and-paste and cut-and-paste operation requests can also be received in the file system driver of the cloud desktop. In order to avoid repeating the copy-and-paste and cut-and-paste operations, the copy-and-paste and cut-and-paste operation requests from the file system driver are ignored. Transmission and return through the preset channel can reduce the division of copy-and-paste and cut-and-paste operation instructions into multiple corresponding sub-operation instructions in the actual operation process, thus improving the data processing rate.

[0040] In an embodiment, as shown in Fig. 7, the above method for disk redirection further includes step S501: encrypting file content carried by the write instruction to obtain encrypted operation content, when the operation request is a write operation request for a transparent encryption-decryption file.

[0041] In an embodiment, the transparent encryption-decryption file refers to a file encrypted by an encryption algorithm. When receiving a write operation request for a transparent encrypted-decrypted file, encrypting the file content corresponding to the write instruction to obtain encrypted operation content. In an embodiment, the transparent encryption-decryption file is identified and marked when it is written.

[0042] Step S502: decrypting a transparent encryption-decryption file to obtain a decrypted transparent encryption-decryption file after obtaining the file operation result of the transparent encryption-decryption file, when the operation request is a read operation request for the transparent encryption-decryption file.

[0043] In an embodiment, when the operation request is a read operation request for a transparent encryption-decryption file, the cloud terminal executes a read operation instruction and returns the transparent encryption-decryption file in which the write content carried by the read operation instruction is written to the cloud desktop, and the cloud desktop decrypts the returned transparent encryption-decryption file to obtain a decrypted transparent encryption-decryption file. In an embodiment, the transparent encryption-decryption file is identified and marked when it is read.

[0044] As shown in Fig. 8, in an embodiment, a method for disk redirection is provided. In this embodiment, the method is mainly applied to the cloud terminal 120 in Fig. 1 as an example. Referring to Fig. 8, the method for disk redirection includes the following steps.

[0045] Step S601: receiving an operation instruction and operation content sent by a cloud desktop.

[0046] In this embodiment, the operation instruction and the operation content are generated according to an operation request for a file in a drive letter of the cloud desktop.

[0047] Step S602: executing the operation instruction and the operation content on a file in a disk corresponding to the operation request.

[0048] Step S603: sending a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0049] In an embodiment, the operation instruction refers to a computer executable instruction for creating, opening, reading/writing, renaming and deleting a file, and creating, opening, enumerating, renaming and deleting a directory. The operation content refers to one or more files targeted by an operation instruction, where the content of a file may additionally or alternatively include: text information, picture information, audio information, etc. The cloud terminal receives the operation instruction and the operation content sent by the cloud desktop through the network. After receiving the operation instruction and the operation content, the cloud terminal executes, in the disk, the operation instruction and the operation content on the file corresponding to the file in the drive letter, to obtain the corresponding file operation result. The file operation result is a file status after the file is changed after the operation instruction and operation content are executed. For example, if the operation instruction is a delete instruction and the operation content is document A, the changed file status is: document A is deleted. The cloud desktop subsequently sends an operation instruction to re-enumerate the directory of the folder where the document A is located, which shows that the directory of the folder where the document A is located no longer contains the document A. The result of the synchronous operation refers to the desired purpose of the operation request. For example, if the operation request is to open folder A, the result of the corresponding synchronization operation is that folder A is opened. The cloud desktop subsequently sends an operation request to enumerate the directory where the folder A is located, and after the folder A is opened, the files in the folder A directory are displayed.

[0050] In an embodiment, as shown in Fig. 9, before step S601, the method further includes the following steps. Step S701: acquiring drive letter information of the disk and corresponding login user information when receiving an access notification of the disk. Step S702: sending the access notification, the drive letter information and the login user information to the cloud desktop, to allow the cloud desktop to create a disk device and a corresponding file system device according to the access notification, to acquire a corresponding session according to the login user information, and to create the drive letter according to the drive letter information based on the session.

[0051] In an embodiment, the disk access notification refers to the notification of a disk accessible by the cloud terminal, and the drive letter information refers to information for describing the drive letter, including identification information of the drive letter, etc. Login user information refers to the information of a user logging into the cloud desktop and cloud terminal, and the user message includes but is not limited to the information such as user authority and user identification. The cloud terminal sends the disk access notification, drive letter information and corresponding login user information to the cloud desktop through the network. After receiving the disk access notification, the cloud desktop creates a disk device and a file system device corresponding to the access notification, where the disk device is a device for storing a drive letter and the file system device is a device for storing a file. The cloud desktop acquires a corresponding session according to the login user information, where the session refers to a system session. Different users create drive letters in their own sessions, which avoids confusion of drive letters and improves information security.

[0052] In an embodiment, a preset operation channel is preset between the cloud terminal and the cloud desktop; As shown in Fig. 10, receiving the operation content sent by the cloud desktop includes step S801: receiving the operation content and the operation instruction which are sent through the preset channel and obtained after the cloud desktop executes a local operation instruction.

[0053] In this embodiment, the local operation instruction is generated according to a preset operation request including a copy-and-paste operation request and a cut-and-paste operation request.

[0054] Sending the file operation result after execution to the cloud desktop includes step S802: sending the file operation result after execution to the cloud desktop through the preset channel.

[0055] In an embodiment, the preset operation request includes a copy-and-paste operation request and a cut-and-paste operation request. The cloud desktop is provided with an operation instruction detection program. When the detection program detects that the operation instruction is a preset operation request, it means that the instruction detected by the operation instruction detection program is a copy-and-paste operation request or a cut-and-paste operation request. The detection program can use system commands to monitor these operation requests, such as using "HOOK" to monitor an operation request of copy-and-paste or cut-and-paste. The local execution instruction refers to the instruction executed on the cloud desktop, and the operation content is the operation content obtained after the local instruction is executed.

[0056] The cloud terminal receives the operation instruction and operation content sent by the cloud desktop through the preset channel, executes the operation instruction and operation content to obtain the corresponding file operation result, and sends the file operation result to the cloud desktop through the preset channel. The preset channel is a fast channel between the cloud terminal and the cloud desktop, through which copy-and-paste and cut-and-paste operations are transmitted and returned. Copy-and-paste and cut-and-paste operation requests can also be received in the file system driver of the cloud desktop. In order to avoid repeating the copy-and-paste and cut-and-paste operations, the copy-and-paste and cut-and-paste operation requests from the file system driver are ignored. Transmission and return through the preset channel can reduce the division of copy-and-paste and cut-and-paste operation instructions into multiple corresponding sub-operation instructions in the actual operation process, thus improving the data processing rate.

[0057] In an embodiment, the above method for disk redirection further includes step S901 of establishing a disk synchronization thread.

[0058] In an embodiment, the disk synchronization thread is configured to synchronize the file after executing the operation instruction to the disk, and wait for the operation instruction to be executed, that is, after the file modification is completed, synchronize the modified file data to the disk.

[0059] In an embodiment, a method for disk redirection is provided, which is applied to a system for disk redirection. Referring to Fig. 3, the system includes a cloud desktop 110 and a cloud terminal 120. The method for disk redirection includes the following steps.

[0060] Referring to Fig. 11, Fig. 11 is a sequence diagram showing a process of accessing a disk.

[0061] At step 1001, a client communication processing service program obtains a terminal operating system event when a disk is accessed, and obtains drive letter information of the disk according to event information.

[0062] At step 1002, the client communication processing service program sends the disk access notification, the drive letter information of the disk and current login user information of the cloud terminal to a cloud desktop communication processing service program.

[0063] At step 1003, the cloud desktop communication processing service program forwards the disk access notification, the current login user information and the drive letter information to a file system driver.

[0064] At step 1004, after receiving the disk access notification forwarded from the cloud terminal by the cloud desktop communication processing service program, the file system driver creates a disk device and a file system device corresponding to the disk device, and then obtains a corresponding session according to the login user information of the cloud terminal, and creates a drive letter in the corresponding session.

[0065] In this embodiment, the cloud terminal executing the disk access initiatively initiates a request, and the cloud desktop operated by a user accepts the request to create the drive letter, and then performs file system filtering and transparent I/O operation on the drive letter, which can adapt to various network environments without network penetration, and the created drive letter also conforms to the user's usage habits and is convenient to use.

[0066] Referring to Fig. 12, Fig. 12 is a sequence diagram showing a process of a file system operation.

[0067] At step 1101, a user operates a file on a cloud desktop system, and a file system driver receives an operation request for a file system device from the cloud desktop system, such as creating, opening, reading/writing, renaming and deleting a file; creating, opening, enumerating, renaming and deleting a directory; acquiring and displaying a volume label; acquiring and displaying size and occupancy of a disk space.

[0068] At step 1102, the file system driver forwards the operation request for the file system device to the cloud desktop communication processing service program in the form of an operation instruction plus operation content.

[0069] At step 1103, the cloud desktop communication processing service program sends the operation instruction and operation content to the client communication processing service program.

[0070] At step 1103a, when encountering an operation request for a file by an unauthorized user in multi-user isolation, a process access that does not conform to the permission rule, a write operation for a file or directory that conforms to the read-only rule, or a write operation for the entire disk, a failure response can be directly returned to the file system driver without forwarding the operation request to the client communication processing service program for processing.

[0071] At step 1103b, a transparent encrypted-decrypted file is identified when being written, and the file content carried by the write instruction is encrypted before being forwarded to the client communication processing service program.

[0072] At step 1104, the client communication processing service program receives the operation instruction and operation content sent from the cloud desktop communication processing service program, and submits the operation instruction and operation content to the file system for processing.

[0073] At step 1105, the file system executes a corresponding operation in the corresponding disk according to the operation instruction and operation content forwarded by the client communication processing service program. At the same time, a thread is created at the cloud terminal to synchronize the modified file data in the memory to the disk after the file modification is completed in sequence.

[0074] At step 1106, after the operation is executed, the file system obtains a file operation result.

[0075] At step 1107, the file system returns the file operation result to the client communication processing service program.

[0076] At step 1108, the client communication processing service returns the file operation result to the cloud desktop communication processing service.

[0077] At step 1109, the cloud desktop communication processing service program receives the file operation result returned from the client communication processing service program and responds at the file system driver.

[0078] At step 1109a, when enumerating the returned file operation results, the screened and hidden files or directories are filtered, and only the filtered results are returned to the file system driver.

[0079] At step 1109b, when reading the transparent encryption-decryption file, the transparent encryption-decryption file is identified and marked; the file content returned after executing the read instruction is decrypted and then responded at the file system driver.

[0080] At step 1110, at the file system driver, the operation request of the cloud desktop system to the file system device is completed.

[0081] The above method for disk redirection can efficiently meet the use requirements of disk redirection and USB mass storage device redirection on cloud desktop, save user resources, and meet the requirements of users. At the same time, the method has no special requirements for the user's use environment, has low maintenance cost, and is convenient for the popularization of cloud desktops. Based on file-level filtering, extended functions of deep embedding can be provided through configuration, such as multi-user isolation, read-only of files or directories conforming to specific rules or the whole disk, screening, transparent encryption and decryption, and encrypted storage on the terminal side. Clear text is seen on the cloud desktop side, and the software can be used normally. Access is allowed for processes that conform to specific rules, while access is not allowed for processes that do not conform to specific rules, and so on.

[0082] In an embodiment, a method for disk redirection involving copy-and-paste and cut-and-paste operations is provided. Referring to Fig. 13, Fig. 13 is a flow chart of the implementation of copy-and-paste and cut-and-paste operations. The implementation of copy-and-paste and cut-and-paste operations differs from general file system operations in that the copy-and-paste and cut-and-paste monitoring program for files and directories directly informs the communication processing service program, and the communication processing service program preferentially processes the copy-and-paste or cut-and-paste operations by using a preset channel. During the operation, the related read-write operations from the file system driver are directly returned by the communication processing service program according to the processing progress of the preset channel. The method includes the following steps.

[0083] At step 1201, a user requests a copy-and-paste operation or a cut-and-paste operation, and the copy-and-paste and cut-and-paste monitoring program module of files and directories monitors a copy-and-paste event or a cut-and-paste event. When judging that the source or target of the event points to a designated drive letter, the monitoring program module notifies the cloud desktop communication processing service program of the event and the source and target information of the event for processing. The designated drive letter refers to the drive letter of the disk created in step 1004 with the currently logged-in user and corresponding to the cloud terminal.

[0084] At step 1202, the cloud desktop communication processing service program divides the operation into cloud desktop side operation and client side operation for the copy-and-paste or cut-and-paste notification of files or directories received from the copy-and-paste and cut-and-paste monitoring program of files and directories. For the copy-and-paste event, when the source of the event points to a designated drive letter, the cloud desktop communication processing service program can divide the operation into: the creation and writing of a file on the cloud desktop, or the creation of a directory on the cloud desktop; reading and opening a file on the client, or opening and enumerating a directory on the client. For the cut-and-paste event, when the source of the event points to a designated drive letter, the cloud desktop communication processing service program can divide the operation into: creation and writing of a file on the client, creation of a directory on the client, etc.; reading, opening and deleting a file on the cloud desktop, or opening, enumerating and deleting a directory on the cloud desktop, etc.

[0085] At steps 1203 to 1208, the cloud desktop communication processing service program screens the requests from the file system driver. In case of a copy-and-paste or cut-and-paste notification request for a file or directory, "Success" will be directly returned according to the progress of the copy-and-paste and cut-and-paste processing channel, and will not be sent to the client communication processing service program for repeated processing. Other requests are handled by common file system operations.

[0086] At step 1203, a preset channel is established between the cloud desktop communication processing service program and the client communication processing service program. If a destination of an event points to a designated drive letter, an operation on the cloud desktop is executed first, and then an operation instruction for the client is sent to the client communication processing service program. If the operation instruction is to create and write a file, file content is obtained from the cloud desktop and directly transmitted to the cloud terminal through the preset channel until the file operation ends. If the operation instruction is to read and open a file, a file is created on the cloud desktop, and then wait for received file content to be written into the file on the cloud desktop until the file operation ends. Other operation requests, such as deleting a file or creating, opening, enumerating and deleting a directory, are sent to the client communication processing service program in the form of an operation instruction plus operation content.

[0087] At step 1204, the client communication processing service program schedules the file system for priority processing according to the operation request via the preset channel.

[0088] At step 1205, the file system executes the corresponding operation in the disk corresponding to the operation request according to the operation instruction and operation content forwarded by the client communication processing service program. At the same time, a thread is created in the cloud terminal to wait for the file modification to be completed in sequence and then synchronize the modified file data in the memory to the storage device.

[0089] At step 1206, after the operation is executed, the file system obtains a file operation result.

[0090] At step 1207, the file system returns the file operation result to the client communication processing service program.

[0091] At step 1208, the client communication processing service program returns the file operation result to the cloud desktop communication processing service program through the copy-and-paste and cut-and-paste processing channel.

[0092] At step 1209, if the source of the event points to a designated drive letter, the cloud desktop communication processing service program executes a corresponding cloud desktop operation divided from the copy-and-paste or cut-and-paste notification.

[0093] The above method for disk redirection can respond to the necessary requests of the file system, in which it can respond to resource occupation, for example, respond to lightweight requests such as network resource occupation, disk I/O, memory and processor resource occupation at both ends, etc., and further realize fast transmission and return for copy-and-paste, cut-and-paste operations of files and directories.

[0094] Figs. 2, 4 to 10 are flow charts of a method for disk redirection in an embodiment. It should be understood that although the steps in the flowcharts of figs. 2, 4 to 10 are displayed in sequence as indicated by arrows, these steps are not necessarily executed in sequence as indicated by arrows. It should be noted that the execution of these steps is not limited in order, and these steps can be executed in other orders. Furthermore, at least some of the steps in figs. 2, 4-10 may include a plurality of sub-steps or stages, which may not necessarily be completed at the same time, but may be executed at different times, and the execution sequence of these sub-steps or stages may not necessarily be carried out sequentially, but may be executed in turn or alternately with other steps or at least a part of sub-steps or stages of other steps.

[0095] In an embodiment, as shown in Fig. 14, an device 200 for disk redirection is provided, which includes: a first generation module 201 configured to receive an operation request for a file in a drive letter and generate a corresponding operation instruction and operation content according to the operation request; a first sending module 202 configured to send the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request; and a response module 203 configured to receive a file operation result after execution and respond to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0096] In an embodiment, as shown in Fig. 15, the above device 200 for disk redirection further includes a disk information reception module 301 configured to receive an access notification of the disk, drive letter information and corresponding login user information sent by the cloud terminal; a creation module 302, configured to create a corresponding disk device and a corresponding file system device according to the access notification, where the file system device is configured to store the file; a drive letter creation module 303, configured to acquire a corresponding session according to the login user information; and create, in the session, the corresponding drive letter according to the drive letter information.

[0097] In an embodiment, as shown in Fig. 16, the above device 200 for disk redirection further includes a judgement module 401 configured to judge whether the operation request is a preset operation request, where the preset operation request includes a copy-and-paste operation request and a cut-and-paste operation request. The first generation module 201 is further configured to generate a local execution instruction according to the preset operation request when the operation request is a preset operation request, and execute the local execution instruction to obtain the operation content. In an embodiment, a preset operation channel is preset between the cloud terminal and the cloud desktop, and the first sending module 202 is further configured to send the operation instruction and operation content through the preset operation channel.

[0098] The response module 203 is also configured to receive the file operation result through the preset operation channel. In an embodiment, as shown in Fig. 17, the above device 200 for disk redirection further includes an encryption module 501 configured to encrypt file content carried by the write instruction to obtain encrypted operation content, when the operation request is a write operation request for a transparent encryption-decryption file; a decryption module 502, configured to decrypt a transparent encryption-decryption file to obtain a decrypted transparent encryption-decryption file after obtaining the file operation result of the transparent encryption-decryption file, when the operation request is a read operation request for the transparent encryption-decryption file.

[0099] In an embodiment, as shown in Fig. 18, an device 600 for disk redirection is provided, which includes an instruction reception module 601 configured to receive an operation instruction and operation content sent by a cloud desktop, where the operation instruction and the operation content are generated according to an operation request for a file in a drive letter of the cloud desktop; an instruction execution module 602 configured to execute the operation instruction and the operation content on a file in a disk corresponding to the operation request; and a data sending module 603 configured to send a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0100] In an embodiment, as shown in Fig. 19, the above device 600 for disk redirection further includes a disk information acquisition module 701 configured to acquire drive letter information of the disk and corresponding login user information when receiving an access notification of the disk; a disk information sending module 702 is configured to send the access notification, the drive letter information and the login user information to the cloud desktop, to allow the cloud desktop to create a disk device and a corresponding file system device according to the access notification, to acquire a corresponding session according to the login user information, and to create, in the session, the drive letter according to the drive letter information.

[0101] In an embodiment, a preset operation channel is preset between the cloud terminal and the cloud desktop.

[0102] The instruction reception module 601 is further configured to receiving the operation content and the operation instruction which are sent through the preset channel and obtained after the cloud desktop executes a local operation instruction, where the local operation instruction is generated according to a preset operation request including a copy-and-paste operation request and a cut-and-paste operation request.

[0103] The data sending module 603 is further configured to send the file operation result after execution to the cloud desktop through the preset channel.

[0104] In an embodiment, the above device 600 for disk redirection further includes a thread establishment module configured to establishing a disk synchronization thread for synchronizing the file, on which the operation instruction is executed, to the disk.

[0105] Fig. 20 shows the internal structure of a computer apparatus in an embodiment. The computer apparatus may be the cloud desktop 110 or the cloud terminal 120 in Fig. 1. As shown in Fig. 20, the computer apparatus includes a processor, a memory, a network interface, an input device and a display screen connected through a system bus. The memory includes a nonvolatile storage medium and an internal memory. The nonvolatile storage medium of the computer apparatus stores an operating system, and can also store a computer program, which, when executed by a processor, causes the processor to implement the method for disk redirection. A computer program can also be stored in the internal memory, which, when executed by the processor, can cause the processor to execute the method for disk redirection. The display screen of the computer apparatus can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer apparatus can be a touch layer covering the display screen; keys, trackballs or touch pads arranged on the shell of computer apparatus; external keyboard, touchpad or mouse, etc.

[0106] It can be understood by those having ordinary skills in the art that the structure shown in Fig. 20 is only a block diagram of some structures related to the technical scheme of the present disclosure, and does not constitute a limitation on the computer apparatus to which the technical scheme of the present disclosure applies. the computer apparatus may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0107] In an embodiment, the device 200 for disk redirection and the device 600 for disk redirection provided by the present disclosure can be implemented in the form of a computer program, which can be run on a computer apparatus as shown in Fig. 20. The memory of the computer apparatus can store respective program modules constituting the device for disk redirection, such as a first generation module 201, a first sending module 202B and a response module 203 shown in Fig. 14. A computer program constituted by the respective program modules causes the processor to execute the steps in the method for disk redirection of the respective embodiments of the present disclosure described in this description.

[0108] For example, the computer apparatus shown in Fig. 20 can receive an operation request for a file in a drive letter through the first generation module 201 in the device for disk redirection 200 shown in Fig. 14, and generate a corresponding operation instruction and operation content according to the operation request. The computer apparatus can send the operation instruction and operation content to the cloud terminal through the first sending module 202, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request. The computer apparatus can receive a file operation result after execution through the response module 203, and respond to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0109] In an embodiment, a computer apparatus is provided, which includes a memory, a processor and a computer program stored in the memory and executable by the processor. When the processor executes the computer program, the following steps are implemented: receiving an operation request for a file in a drive letter, and generating a corresponding operation instruction and operation content according to the operation request; sending the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request; and receiving a file operation result after execution and responding to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0110] In an embodiment, before receiving the operation request for the file in the drive letter, the following steps are also implemented when the processor executes the computer program: receiving an access notification of the disk, drive letter information and corresponding login user information sent by the cloud terminal; creating a corresponding disk device and a corresponding file system device according to the access notification, where the file system device is configured to store the file; acquiring a corresponding session according to the login user information; and creating, in the session, the corresponding drive letter according to the drive letter information.

[0111] In an embodiment, when the processor executes the computer program, the following steps are also implemented: judging whether the operation request is a preset operation request, where the preset operation request includes a copy-and-paste operation request and a cut-and-paste operation request; and generating a local execution instruction according to the preset operation request when the operation request is a preset operation request; and executing the local execution instruction to obtain the operation content.

[0112] In an embodiment, a preset operation channel is preset between the cloud terminal and the cloud desktop, the operation instruction and operation content are sent through the preset operation channel; receiving the file operation result after execution includes: receiving the file operation result through the preset operation channel.

[0113] In an embodiment, the operation instruction includes a write instruction, and before sending the operation instruction and operation content to the cloud terminal, the following steps are also implemented when the processor executes the computer program: encrypting file content carried by the write instruction to obtain encrypted operation content, when the operation request is a write operation request for a transparent encryption-decryption file; and decrypting a transparent encryption-decryption file to obtain a decrypted transparent encryption-decryption file after obtaining the file operation result of the transparent encryption-decryption file, when the operation request is a read operation request for the transparent encryption-decryption file.

[0114] In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented: receiving an operation request for a file in a drive letter, and generating a corresponding operation instruction and operation content according to the operation request; sending the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request; and receiving a file operation result after execution and responding to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0115] In an embodiment, before receiving the operation request for the file in the drive letter, the following steps are also implemented when the processor executes the computer program: receiving an access notification of the disk, drive letter information and corresponding login user information sent by the cloud terminal; creating a corresponding disk device and a corresponding file system device according to the access notification, where the file system device is configured to store the file; acquiring a corresponding session according to the login user information; and creating, in the session, the corresponding drive letter according to the drive letter information.

[0116] In an embodiment, when the processor executes the computer program, the following steps are also implemented: judging whether the operation request is a preset operation request, where the preset operation request includes a copy-and-paste operation request and a cut-and-paste operation request; and generating a local execution instruction according to the preset operation request when the operation request is a preset operation request; and executing the local execution instruction to obtain the operation content.

[0117] In an embodiment, a preset operation channel is preset between the cloud terminal and the cloud desktop, the operation instruction and operation content are sent through the preset operation channel; receiving the file operation result after execution includes: receiving the file operation result through the preset operation channel.

[0118] In an embodiment, the operation instruction includes a write instruction, and before sending the operation instruction and operation content to the cloud terminal, the following steps are also implemented when the processor executes the computer program: encrypting file content carried by the write instruction to obtain encrypted operation content, when the operation request is a write operation request for a transparent encryption-decryption file; and decrypting a transparent encryption-decryption file to obtain a decrypted transparent encryption-decryption file after obtaining the file operation result of the transparent encryption-decryption file, when the operation request is a read operation request for the transparent encryption-decryption file.

[0119] For example, the computer apparatus shown in Fig. 20 can receive an operation instruction and operation content sent by a cloud desktop through the instruction reception module 601 in the device for disk redirection 600 shown in Fig. 18, where the operation instruction and the operation content are generated according to an operation request for a file in a drive letter of the cloud desktop. The computer apparatus can execute the operation instruction and the operation content on a file in a disk corresponding to the operation request through the instruction execution module 602. The computer apparatus can send a file operation result after execution to the cloud desktop through the data sending module 603, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0120] In an embodiment, a computer apparatus is provided, which includes a memory, a processor and a computer program stored in the memory and executable by the processor. When the processor executes the computer program, the following steps are implemented: receiving an operation instruction and operation content sent by a cloud desktop, where the operation instruction and operation content are generated according to an operation request for a file in a drive letter of the cloud desktop; executing the operation instruction and the operation content on a file in a disk corresponding to the operation request; and sending a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0121] In an embodiment, before receiving the operation instruction and the operation content sent by the cloud desktop, the following steps are also implemented when the processor executes the computer program: acquiring drive letter information of the disk and corresponding login user information when receiving an access notification of the disk; and sending the access notification, the drive letter information and the login user information to the cloud desktop, to allow the cloud desktop to create a disk device and a corresponding file system device according to the access notification, to acquire a corresponding session according to the login user information, and to create, in the session, the drive letter according to the drive letter information.

[0122] In an embodiment, a preset operation channel is preset between the cloud terminal and the cloud desktop. Receiving the operation content sent by the cloud desktop includes: receiving the operation content and the operation instruction which are sent through the preset channel and obtained after the cloud desktop executes a local operation instruction, where the local operation instruction is generated according to a preset operation request including a copy-and-paste operation request and a cut-and-paste operation request. Sending the file operation result after execution to the cloud desktop includes: sending the file operation result after execution to the cloud desktop through the preset channel.

[0123] In an embodiment, when the processor executes the computer program, the following step is also implemented: establishing a disk synchronization thread for synchronizing the file, on which the operation instruction is executed, to the disk.

[0124] In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented: receiving an operation instruction and operation content sent by a cloud desktop, where the operation instruction and operation content are generated according to an operation request for a file in a drive letter of the cloud desktop; executing the operation instruction and the operation content on a file in a disk corresponding to the operation request; and sending a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

[0125] In an embodiment, before receiving the operation instruction and the operation content sent by the cloud desktop, the following steps are also implemented when the processor executes the computer program: acquiring drive letter information of the disk and corresponding login user information when receiving an access notification of the disk; and sending the access notification, the drive letter information and the login user information to the cloud desktop, to allow the cloud desktop to create a disk device and a corresponding file system device according to the access notification, to acquire a corresponding session according to the login user information, and to create, in the session, the drive letter according to the drive letter information.

[0126] In an embodiment, a preset operation channel is preset between the cloud terminal and the cloud desktop. Receiving the operation content sent by the cloud desktop includes: receiving the operation content and the operation instruction which are sent through the preset channel and obtained after the cloud desktop executes a local operation instruction, where the local operation instruction is generated according to a preset operation request including a copy-and-paste operation request and a cut-and-paste operation request. Sending the file operation result after execution to the cloud desktop includes: sending the file operation result after execution to the cloud desktop through the preset channel.

[0127] In an embodiment, when the processor executes the computer program, the following step is also implemented: establishing a disk synchronization thread for synchronizing the file, on which the operation instruction is executed, to the disk.

[0128] It can be understood by those having ordinary skills in the art that all or some of the steps, systems and functional modules/units in the devices disclosed above can be implemented as software, firmware, hardware and appropriate combinations thereof. In the hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components. For example, a physical component may have multiple functions, or a function or step may be cooperatively performed by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on computer-readable media, which can include computer storage medium (or non-transitory media) and communication media (or transitory media). As well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer readable instructions, data structures, program modules or other data. Computer storage medium include but are not limited to RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic boxes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other media that can be used to store desired information and can be accessed by computers. Furthermore, it is well known to those of ordinary skill in the art that communication media typically contain computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery media.

[0129] It should be noted that in the present disclosure, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or equipment including a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article or equipment. Without further limitation, the element defined by the sentence "including one ..." does not exclude that there are other identical elements in the process, method, article or equipment including the element.

[0130] The above method, device, computer apparatus and storage medium for disk redirection realize a synchronous operation between the file in the drive letter and the file in the corresponding disk, by receiving an operation request for a file in a drive letter, and generating a corresponding operation instruction and operation content according to the operation request; sending the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, where the disk corresponds to the operation request; and receiving a file operation result after execution and responding to the file operation result. Therefore, the network adaptability of disk redirection is improved.

[0131] The above method, device, computer apparatus and storage medium for disk redirection realize a synchronous operation between the file in the drive letter and the file in the corresponding disk, by receiving an operation instruction and operation content sent by a cloud desktop, where the operation instruction and operation content are generated according to an operation request for a file in a drive letter of the cloud desktop; executing the operation instruction and the operation content on a file in a disk corresponding to the operation request; and sending a file operation result after execution to the cloud desktop. Therefore, the network adaptability of disk redirection is improved.

[0132] The above system for disk redirection includes a cloud terminal and a cloud desktop, where the cloud desktop receives an operation request for a file in a drive letter, generates a corresponding operation instruction and operation content according to the operation request, and sends the operation instruction and operation content to the cloud terminal; the cloud terminal executes the operation instruction and the operation content on a file in a disk corresponding to the operation request; and the cloud desktop receives a file operation result after execution and respond to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk. Therefore, the network adaptability of disk redirection is improved.

[0133] The above are several embodiments of the present disclosure, such that those having ordinary skills in the art can understand or realize the present disclosure. Various modifications to these embodiments will be apparent to those having ordinary skills in the art, and the general principles defined herein may be implemented in other embodiments without departing from the essence or scope of the present disclosure. Therefore, the present disclosure should not be limited to the embodiments shown herein, but should be accorded the widest scope consistent with the principles and novel features applied herein.

Claims

1. a method for disk redirection, comprising:

receiving an operation request for a file in a drive letter, and generating a corresponding operation instruction and operation content according to the operation request;

sending the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, wherein the disk corresponds to the operation request; and

receiving a file operation result after execution and responding to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

2. The method of claim 1, wherein before receiving the operation request for the file in the drive letter, the method further comprises:

receiving an access notification of the disk, drive letter information and corresponding login user information sent by the cloud terminal;

creating a corresponding disk device and a corresponding file system device according to the access notification, wherein the file system device is configured to store the file;

acquiring a corresponding session according to the login user information; and

creating, in the session, the corresponding drive letter according to the drive letter information.

3. The method of claim 1,
wherein the method further comprises:

judging whether the operation request is a preset operation request, wherein the preset operation request comprises a copy-and-paste operation request and a cut-and-paste operation request; and

wherein generating the operation content according to the preset operation request comprises:

generating a local execution instruction according to the preset operation request in response to the operation request being a preset operation request; and

executing the local execution instruction to obtain the operation content.

4. The method of claim 3, wherein a preset operation channel is preset between the cloud terminal and the cloud desktop;

sending the operation instruction and operation content through the preset operation channel;

wherein receiving the file operation result after execution comprises:
receiving the file operation result through the preset operation channel.

5. The method of claim 1, wherein the operation instruction comprises a write instruction, and before sending the operation instruction and operation content to the cloud terminal, the method further comprises:

encrypting file content carried by the write instruction to obtain encrypted operation content, in response to the operation request being a write operation request for a transparent encryption-decryption file; and

decrypting a transparent encryption-decryption file to obtain a decrypted transparent encryption-decryption file after obtaining the file operation result of the transparent encryption-decryption file, in response to the operation request being a read operation request for the transparent encryption-decryption file.

6. A method for disk redirection, comprising:

receiving an operation instruction and operation content sent by a cloud desktop, wherein the operation instruction and operation content are generated according to an operation request for a file in a drive letter of the cloud desktop;

executing the operation instruction and the operation content on a file in a disk corresponding to the operation request; and

sending a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

7. The method of claim 6, wherein before receiving the operation instruction and the operation content sent by the cloud desktop, the method further comprises:

acquiring drive letter information of the disk and corresponding login user information in response to a reception of an access notification of the disk; and

sending the access notification, the drive letter information and the login user information to the cloud desktop, to allow the cloud desktop to create a disk device and a corresponding file system device according to the access notification, to acquire a corresponding session according to the login user information, and to create, in the session, the drive letter according to the drive letter information.

8. The method of claim 6, wherein a preset operation channel is preset between the cloud terminal and the cloud desktop;
receiving the operation content sent by the cloud desktop comprises:

receiving the operation content and the operation instruction which are sent through the preset channel and obtained after the cloud desktop executes a local operation instruction, wherein the local operation instruction is generated according to a preset operation request comprising a copy-and-paste operation request and a cut-and-paste operation request; and

sending the file operation result after execution to the cloud desktop comprises:

sending the file operation result after execution to the cloud desktop through the preset channel.

9. The method of claim 6, further comprising:
establishing a disk synchronization thread for synchronizing the file, on which the operation instruction is executed, to the disk.

10. A system for disk redirection, comprising a cloud terminal and a cloud desktop, wherein, the cloud desktop is configured to receive an operation request for a file in a drive letter, generate a corresponding operation instruction and operation content according to the operation request, and send the operation instruction and operation content to the cloud terminal;

the cloud terminal is configured to execute the operation instruction and the operation content on a file in a disk corresponding to the operation request; and

the cloud desktop is configured to receive a file operation result after execution and respond to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

11. A device for disk redirection, comprising:

a first generation module configured to receive an operation request for a file in a drive letter and generate a corresponding operation instruction and operation content according to the operation request;

a first sending module configured to send the operation instruction and operation content to a cloud terminal, to allow the operation instruction and operation content being executed on a file in a disk of the cloud terminal, wherein the disk corresponds to the operation request; and

a response module configured to receive a file operation result after execution and respond to the file operation result, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

12. A device for disk redirection, comprising:

an instruction reception module configured to receive an operation instruction and operation content sent by a cloud desktop, wherein the operation instruction and the operation content are generated according to an operation request for a file in a drive letter of the cloud desktop;

an execution module configured to execute the operation instruction and the operation content on a file in a disk corresponding to the operation request; and

a sending module configured to send a file operation result after execution to the cloud desktop, to realize a synchronous operation between the file in the drive letter and the file in the corresponding disk.

Drawing